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piezoelectric scanner creep is the continued slow displacement after a step in scanner drive, even when the commanded voltage has stopped changing. The scanner's strain continues to relax, and the motion can resemble a slowly decaying, approximately logarithmic drift. After changing scan size, position or offset, early lines can therefore have stretched or compressed coordinates. Allow settling, avoid large abrupt moves, use a position-sensor closed-loop control system, and compare repeated images. This time-dependent response differs from the direction-dependent piezoelectric hysteresis and from ordinary thermal drift.

Dependence of piezoelectric displacement on the history and direction of the applied voltage. It differs from the continuing time-dependent relaxation called piezoelectric scanner creep.

A positioner using the converse effect of piezoelectricity to move a probe or specimen. Its calibrated motion can form an atomic force microscopy height image under closed-loop control. piezoelectric hysteresis, piezoelectric scanner creep, travel and control bandwidth limit faithful motion.